Road deicers raise several environmental and cost concerns. In this activity students …
Road deicers raise several environmental and cost concerns. In this activity students consider alternatives while investigating colligative properties.
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Global temperatures continue to be affected by the combustion of fossil fuels …
Global temperatures continue to be affected by the combustion of fossil fuels and the subsequent release of carbon dioxide. This 3-week unit is designed to give 9th grade physical science or environmental science student an introduction to climate change, how humans are influencing it, and what efforts we can make to help limit or prevent it. Topics necessary for this unit include electricity, circuits, greenhouse gases, alternative energies, embodied energy, payback period, and life cycle assessments. This unit functions as a culminating project incorporating all of the topics listed above and challenges students to conduct research, engineer their own alternative energy solutions and prove their efficiency through calculation. Individually or in pairs students must pick an alternative energy, spend a day or more researching it, a day drawing a blueprint for it and creating a materials list, two or three days building model “power plants” to light 3 LEDs, and two to three days writing summary research papers. The quantitative analysis of their models (included in their research papers) and student’s ability to prove their models environmental superiority over fossil fuels will be weighted heavily.
Is climate change real? Yes, it is! And technologies to reduce Greenhouse …
Is climate change real? Yes, it is! And technologies to reduce Greenhouse Gas (GHG) emissions are being developed. One type of technology that is imperative in the short run is biofuels; however, biofuels must meet specifications for gasoline, diesel, and jet fuel, or catastrophic damage could occur. This course will examine the chemistry of technologies of bio-based sources for power generation and transportation fuels. We'll consider various biomasses that can be utilized for fuel generation, understand the processes necessary for biomass processing, explore biorefining, and analyze how biofuels can be used in current fuel infrastructure.
Students learn how nanoparticles can be creatively used for medical diagnostic purposes. …
Students learn how nanoparticles can be creatively used for medical diagnostic purposes. They learn about buckminsterfullerenes, more commonly known as buckyballs, and about the potential for these complex carbon molecules to deliver drugs and other treatments into the human body. They brainstorm methods to track buckyballs in the body, then build a buckyball from pipe cleaners with a fluorescent tag to model how nanoparticles might be labeled and detected for use in a living organism. As an extension, students research and select appropriate radioisotopes for different medical applications.
In this activity students examine groundwater flow path based on hydraulic head …
In this activity students examine groundwater flow path based on hydraulic head data/ potentiometric surface and spatial variation of groundwater chemistry. Students analyze the data using AquaChem and Phreeqc which is integrated with AquaChem
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In this project, much of the learning responsibility is placed on the …
In this project, much of the learning responsibility is placed on the individual students within the project team, and also on the team acting as a cooperative unit. Students will be provided with some basic background and will have some avenues to investigate and present as a team (polar vs. nonpolar compounds and surface area, hydrophilicity vs. hydrophobicity, the history of mass spectroscopy, the advantages and disadvantages of longitudinal studies, the specialization of scientific fields, and the importance of collaboration between experts in different scientific fields.
Analytical chemistry spans nearly all areas of chemistry but involves the development …
Analytical chemistry spans nearly all areas of chemistry but involves the development of tools and methods to measure physical properties of substances and apply those techniques to the identification of their presence (qualitative analysis) and quantify the amount present (quantitative analysis) of species in a wide variety of settings.
Analytical chemistry is more than a collection of analytical methods and an …
Analytical chemistry is more than a collection of analytical methods and an understanding of equilibrium chemistry; it is an approach to solving chemical problems. Although equilibrium chemistry and analytical methods are important, their coverage should not come at the expense of other equally important topics. The introductory course in analytical chemistry is the ideal place in the undergraduate chemistry curriculum for exploring topics such as experimental design, sampling, calibration strategies, standardization, optimization, statistics, and the validation of experimental results. Analytical methods come and go, but best practices for designing and validating analytical methods are universal. Because chemistry is an experimental science it is essential that all chemistry students understand the importance of making good measurements.
As currently taught in the United States, introductory courses in analytical chemistryemphasize …
As currently taught in the United States, introductory courses in analytical chemistryemphasize quantitative (and sometimes qualitative) methods of analysis along with a heavydose of equilibrium chemistry. Analytical chemistry, however, is much more than a collection ofanalytical methods and an understanding of equilibrium chemistry; it is an approach to solvingchemical problems. Although equilibrium chemistry and analytical methods are important, theircoverage should not come at the expense of other equally important topics.
The introductory course in analytical chemistry is the ideal place in the undergraduate chemistry curriculum forexploring topics such as experimental design, sampling, calibration strategies, standardization,optimization, statistics, and the validation of experimental results. Analytical methods comeand go, but best practices for designing and validating analytical methods are universal. Becausechemistry is an experimental science it is essential that all chemistry students understand theimportance of making good measurements.
My goal in preparing this textbook is to find a more appropriate balance between theoryand practice, between “classical” and “modern” analytical methods, between analyzing samplesand collecting samples and preparing them for analysis, and between analytical methods anddata analysis. There is more material here than anyone can cover in one semester; it is myhope that the diversity of topics will meet the needs of different instructors, while, perhaps,suggesting some new topics to cover.
This is Experiment #3 in the Analytical Chemistry Lab sequence at MSU …
This is Experiment #3 in the Analytical Chemistry Lab sequence at MSU Denver. In this experiment students will extract bismuth from pepto bismol and then quantify it using two techniques: gravimetry and flame atomic absorption spectroscopy.
This is Experiment #5 in the Analytical Chemistry Lab sequence at MSU …
This is Experiment #5 in the Analytical Chemistry Lab sequence at MSU Denver. In this experiment, students will use two methods to determine the concentration of two food dyes in a sports beverage.Spectrophotometric analysis with linear least squares regressionHigh Performance Liquid Chromatography (HPLC) analysisStudents will learn quantitative methods with spectroscopy and learn to interpret a chromatogram to create a calibration model. Then students will compare and contrast the methods and report their results in a technical write-up.
Long Description: Located at https://courses.lumenlearning.com/labmethods/ Word Count: 9849 (Note: This resource's metadata …
Long Description: Located at https://courses.lumenlearning.com/labmethods/
Word Count: 9849
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Long Description: Located at https://courses.lumenlearning.com/labmethods/ Word Count: 13827 (Note: This resource's metadata …
Long Description: Located at https://courses.lumenlearning.com/labmethods/
Word Count: 13827
(Note: This resource's metadata has been created automatically by reformatting and/or combining the information that the author initially provided as part of a bulk import process.)
This is a laboratory course supplemented by lectures that focus on selected …
This is a laboratory course supplemented by lectures that focus on selected analytical facilities that are commonly used to determine the mineralogy, elemental abundance and isotopic ratios of Sr and Pb in rocks, soils, sediments and water.
In this activity, students examine a photograph of the night sky and …
In this activity, students examine a photograph of the night sky and answer questions about their observations. The picture, taken by a high school student in upstate New York, offers insight into the Earth's rotation, apparent star motion, the location of Polaris (the North Star), circumpolar constellations, and pointer stars.
This activity will introduce pH testing of cleaning products, citrus fruits, and …
This activity will introduce pH testing of cleaning products, citrus fruits, and then analyzes a mystery Green product. Students will compare and contrast findings to discover an earth friendly product.
Instructional sequences are more coherent when students investigate compelling natural phenomena (in …
Instructional sequences are more coherent when students investigate compelling natural phenomena (in science) or work on meaningful design problems (in engineering) by engaging in the science and engineering practices. We refer to these phenomena and design problems here as ‘anchors.’Here is a tool to assist in determining if the elements of the anchoring phenomenon are strong or could use some additional thinking. Original works can be found at NextGenStorylines.org
This open course with a new set of ancillary materials for OpenStax …
This open course with a new set of ancillary materials for OpenStax Chemistry was created under a Round Eleven Mini-Grant for Ancillary Materials Creation and Revision. The materials created in order to support faculty implementing OpenStax Psychology in the classroom include:
Lecture Slides Chapter Checklists Practice Problems Newly-Created Videos
Along with these resources, the open course also contains a laboratory section with new instructional videos, a laboratory notebook and a sample notebook with responses, and experiments for each course.
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